Miniature circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a miniature circuit breaker which comprises a circuit breaker body, a mounting groove is formed in the back face of the circuit breaker body, and a fixing assembly is arranged at the top of the interior of the mounting groove. The fixing assembly comprises a lifting hole, the lifting hole is formed in the top of the interior of the mounting groove, a lifting column is movably connected to the interior of the lifting hole, a first spiral spring is fixedly connected to the outer side of the lifting column, the other end of the first spiral spring is fixedly connected with the lifting hole, and a pressing block is fixedly connected to the top of the lifting column. And a clamping head is fixedly connected to the bottom of the lifting column, an adaptive groove is formed in the bottom of the interior of the mounting groove, and an adaptive column is fixedly connected to the interior of the adaptive groove. According to the miniature circuit breaker, through the gradient between the spiral spring I and the side surface of the auxiliary ring, the lifting column can successfully leave the interior of the adaptive groove, so that the convenience and efficiency of installation of the circuit breaker body are effectively improved, and the miniature circuit breaker is convenient for a user to use.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a small circuit breaker. Background Art

[0002] A circuit breaker is a switching device that can close, carry and interrupt current under normal circuit conditions and can close, carry and interrupt current under abnormal circuit conditions within a specified time.

[0003] During the installation of existing oil circuit breakers, the circuit breaker is mainly connected to the placement surface by bolts. Therefore, during the installation process, a screwdriver tool is required to tighten the screws so that the circuit breaker can be installed and removed. However, if the user does not carry a screwdriver or the screwdriver model is not suitable, the circuit breaker may not be installed and removed. Utility Model Content

[0004] The purpose of this utility model is to provide a miniature circuit breaker to solve the problem mentioned in the background art above, that is, when a user does not carry a screwdriver or carries an inappropriate screwdriver model, the user may be unable to install or remove the circuit breaker. To achieve the above object, the utility model provides the following technical solution: a miniature circuit breaker, comprising a circuit breaker body, a mounting groove formed on the back of the circuit breaker body, and a fixing assembly disposed at the top of the mounting groove;

[0005] The fixing assembly includes a lifting hole, the lifting hole is opened at the top of the installation slot, the lifting column is movably connected to the inside of the lifting hole, the outer side of the lifting column is fixedly connected to a coil spring 1, the other end of the coil spring 1 is fixedly connected to the lifting hole, the top of the lifting column is fixedly connected to a pressing block, the bottom of the lifting column is fixedly connected to a clamping head, the bottom of the installation slot is opened, the inside of the adapter slot is fixedly connected to an adapter column, the outer side of the adapter column is movably connected to an auxiliary ring, the bottom of the auxiliary ring is fixedly connected to a coil spring 2, the coil spring 2 is fixedly connected to the bottom of the adapter slot, the setting of the fixing assembly, during use, The user first clamps the circuit breaker body on the outside of the mounting post through the mounting slot, and then presses the pressing block to make the lifting post pass through the inside of the mounting post and enter the inside of the adapter slot. Then, the clamping head at the bottom of the lifting post will be clamped on the outside of the adapter post, thereby completing the installation of the circuit breaker body. Later, when the circuit breaker body needs to be disassembled, it is only necessary to continue pressing the pressing block to make the lifting post drive the clamping head to descend and clamp the clamping head on the outside of the auxiliary ring. Then, through the slope of the coil spring and the side of the auxiliary ring, the lifting post can successfully leave the inside of the adapter slot, effectively improving the convenience and efficiency of the installation of the circuit breaker body and facilitating the use of the user.

[0006] Further preferably, the lifting column is adapted to the adapting groove, the clamping head is adapted to the adapting column, and the clamping head is adapted to the auxiliary ring.

[0007] Further preferably, a connecting assembly is provided at the bottom of the circuit breaker body, and the connecting assembly includes a connecting shell, which is fixedly connected to the bottom of the circuit breaker body, and a clamping block 1 is fixedly connected to one side of the interior of the connecting shell. With the arrangement of the connecting assembly, when connecting the wires, the user first clamps the wires on the side opposite to the elastic sheet, and supports and fixes the wires through the elasticity of the elastic sheet. Then, the wire ends are inserted into the interior of the connecting shell, and the bolts are tightened, so that the bolts drive the clamping block 2 to move. Then, when the wires are moved to a certain distance, the wire ends can be clamped between the clamping block 2 and the clamping block 1, and the elastic sheet supports and limits the wires, thereby effectively improving the safety and stability of the wire connection and effectively improving the practicality.

[0008] Further preferably, a second clamping block is movably connected to the other side of the interior of the connecting shell, and the internal thread of the second clamping block is connected to a bolt, and the bolt passes through the interior of the first clamping block.

[0009] Further preferably, an auxiliary block is fixedly connected to the bottom of the circuit breaker body and below the connecting shell, a wire routing groove is provided inside the auxiliary block, and an elastic sheet is fixedly connected inside the wire routing groove.

[0010] Further preferably, a protective cover is rotatably connected to the bottom of the circuit breaker body, and positioning holes are opened on the side surface of the circuit breaker body, and the positioning holes are symmetrically distributed on the side surface of the circuit breaker body.

[0011] Further preferably, a dustproof assembly is provided on the outside of the circuit breaker body, and the dustproof assembly includes a rotating shaft, which is rotatably connected to the outside of the circuit breaker body. A dustproof cover is fixedly connected to the side surface of the rotating shaft, and the dustproof cover is adapted to the circuit breaker body. The dustproof assembly is arranged so that during use, the user can open the dustproof cover by bend it upwards, and bend it downwards to make the positioning block stuck in the inside of the positioning hole, thereby protecting the circuit breaker body and effectively improving the safety of the circuit breaker body.

[0012] Further preferably, transparent glass is fixedly connected to the inside of the dust cover, and positioning blocks are fixedly connected to the inner wall of the dust cover, and the positioning blocks are symmetrically distributed on the inner wall of the dust cover.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, the fixing assembly is arranged such that during use, the user first clamps the circuit breaker body on the outer side of the mounting post through the mounting groove, and then presses the pressing block to make the lifting post pass through the interior of the mounting post and enter the interior of the adapter groove. Then, the clamping head at the bottom of the lifting post will be clamped on the outer side of the adapter post, thereby completing the installation of the circuit breaker body. Later, when the circuit breaker body needs to be disassembled, it is only necessary to continue pressing the pressing block to make the lifting post drive the clamping head to descend and clamp the clamping head on the outer side of the auxiliary ring. Subsequently, the coil spring and the slope of the side surface of the auxiliary ring are used to make the lifting post successfully leave the interior of the adapter groove, effectively improving the convenience and efficiency of the installation of the circuit breaker body and facilitating the use of the user.

[0015] In the utility model, the connection component is set up, and when connecting the wires, the user first clamps the wires on the side opposite to the elastic sheet, and the elasticity of the elastic sheet can support and fix the wires. Then, the wire ends are inserted into the interior of the connecting shell, and the bolt is tightened, so that the bolt drives the clamping block 2 to move. After that, when it moves to a certain distance, the wire ends can be clamped between the clamping block 2 and the clamping block 1, and the elastic sheet supports and limits the wires, thereby effectively improving the safety and stability of the wire connection and effectively improving the practicality.

[0016] In the utility model, the dustproof component is arranged so that during use, the user can open the dustproof cover by pushing it upwards, and push it downwards to make the positioning block stuck in the positioning hole, thereby protecting the circuit breaker body and effectively improving the safety of the circuit breaker body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 3 It is a partial three-dimensional structural diagram of the utility model;

[0020] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 5 This is a schematic structural diagram of a cross-section of the circuit breaker body of the present invention;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the local components of the connection assembly of the utility model;

[0023] Figure 7 This is a schematic diagram of the three-dimensional structure of some parts of the dustproof assembly of the utility model.

[0024] In the figure: 1. Circuit breaker body; 2. Mounting slot; 3. Fixing assembly; 4. Connecting assembly; 5. Protective cover; 6. Positioning hole; 7. Dustproof assembly; 301. Lifting hole; 302. Lifting column; 303. Coil spring 1; 304. Pressing block; 305. Clamp; 306. Adapter slot; 307. Adapter column; 308. Auxiliary ring; 309. Coil spring 2; 401. Connecting shell; 402. Clamping block 1; 403. Clamping block 2; 404. Bolt; 405. Auxiliary block; 406. Cable trough; 407. Elastic sheet; 701. Rotating shaft; 702. Dustproof cover; 703. Transparent glass; 704. Positioning block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] See also Figure 1 - Figure 7 The utility model provides a technical solution: a small circuit breaker, comprising a circuit breaker body 1, a mounting groove 2 is provided on the back of the circuit breaker body 1, and a fixing component 3 is provided on the top of the mounting groove 2;

[0027] The fixing assembly 3 includes a lifting hole 301, which is provided at the top of the mounting groove 2. A lifting column 302 is movably connected inside the lifting hole 301. A coil spring 1 303 is fixedly connected to the outer side of the lifting column 302. The other end of the coil spring 1 303 is fixedly connected to the lifting hole 301. A pressing block 304 is fixedly connected to the top of the lifting column 302. A clamping head 305 is fixedly connected to the bottom of the lifting column 302. An adapting groove 306 is provided at the bottom of the mounting groove 2. An adapting column 307 is fixedly connected to the inside of the adapting groove 306. An auxiliary ring 308 is movably connected to the outer side of the adapting column 307. A coil spring 2 309 is fixedly connected to the bottom of the adapting groove 306. The lifting column 302 is adapted to the adapting groove 306. The clamping head 305 is adapted to the adapting column 307. The clamping head 305 is adapted to the auxiliary ring 308.

[0028] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 and Figure 6As shown, a connecting assembly 4 is provided at the bottom of the circuit breaker body 1. The connecting assembly 4 includes a connecting housing 401, which is fixedly connected to the bottom of the circuit breaker body 1. A clamping block 1 402 is fixedly connected to one side of the interior of the connecting housing 401, and a clamping block 2 403 is movably connected to the other side of the interior of the connecting housing 401. A bolt 404 is threadedly connected to the interior of the clamping block 2 403, and the bolt 404 passes through the interior of the clamping block 1 402. An auxiliary block 405 is fixedly connected to the bottom of the circuit breaker body 1 and below the connecting housing 401. A cable routing groove 406 is defined in the interior of the auxiliary block 405, and an elastic piece 407 is fixedly connected to the interior of the cable routing groove 406.

[0029] In this embodiment, Figure 1 、 Figure 3 and Figure 4 As shown, a protective cover 5 is rotatably connected to the bottom of the circuit breaker body 1 , and positioning holes 6 are opened on the side surface of the circuit breaker body 1 . The positioning holes 6 are symmetrically distributed on the side surface of the circuit breaker body 1 .

[0030] In this embodiment, Figure 7 As shown, a dustproof assembly 7 is provided on the outside of the circuit breaker body 1. The dustproof assembly 7 includes a rotating shaft 701, which is rotatably connected to the outside of the circuit breaker body 1. A dustproof cover 702 is fixedly connected to the side surface of the rotating shaft 701. The dustproof cover 702 is adapted to the circuit breaker body 1. A transparent glass 703 is fixedly connected to the inside of the dustproof cover 702. The inner wall of the dustproof cover 702 is fixedly connected to a positioning block 704. The positioning blocks 704 are symmetrically distributed on the inner wall of the dustproof cover 702.

[0031] The use method and advantages of this utility model: When the miniature circuit breaker is in use, the working process is as follows:

[0032] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7As shown, during use, the user first clamps the circuit breaker body 1 on the outside of the mounting column through the mounting slot 2, and then presses the pressing block 304 to make the lifting column 302 pass through the interior of the mounting column and enter the interior of the adapter slot 306. Then, the clamping head 305 at the bottom of the lifting column 302 will be clamped on the outside of the adapter column 307, thereby completing the installation of the circuit breaker body 1. Later, when the circuit breaker body 1 needs to be disassembled, it is only necessary to continue pressing the pressing block 304, so that the lifting column 302 drives the clamping head 305 to descend and clamp the clamping head 305 on the outside of the auxiliary ring 308. Then, through the slope of the coil spring 1 303 and the side of the auxiliary ring 308, the lifting column 302 can be lifted. After the lowering column 302 successfully leaves the interior of the adapter slot 306, the user can then take out the circuit breaker body 1; and with the arrangement of the connecting assembly 4, when connecting the wire, the user first clamps the wire on the opposite side of the elastic sheet 407. The elasticity of the elastic sheet 407 supports and fixes the wire, and then inserts the wire end into the interior of the connecting shell 401 and tightens the bolt 404, so that the bolt 404 drives the second clamping block 403 to move. Afterwards, when the clamping block 403 moves to a certain distance, the wire end can be clamped between the first clamping block 402, and the elastic sheet 407 supports and limits the wire, thereby effectively improving the safety and stability of the wire connection.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A miniature circuit breaker, comprising a circuit breaker body (1), characterized in that: A mounting groove (2) is provided on the back of the circuit breaker body (1), and a fixing component (3) is provided on the top of the mounting groove (2); The fixing assembly (3) includes a lifting hole (301), the lifting hole (301) is opened at the top inside the installation slot (2), the lifting hole (301) is movably connected to a lifting column (302), the outer side of the lifting column (302) is fixedly connected to a coil spring (303), the other end of the coil spring (303) is fixedly connected to the lifting hole (301), the top of the lifting column (302) is fixedly connected to a pressing block (304), The bottom of the lifting column (302) is fixedly connected to a clamping head (305), the bottom of the interior of the installation groove (2) is provided with an adapting groove (306), the interior of the adapting groove (306) is fixedly connected to an adapting column (307), the outer side of the adapting column (307) is movably connected to an auxiliary ring (308), the bottom of the auxiliary ring (308) is fixedly connected to a second coil spring (309), and the second coil spring (309) is fixedly connected to the bottom of the adapting groove (306).

2. A miniature circuit breaker according to claim 1, characterized in that: The lifting column (302) is adapted to the adapting groove (306), the clamping head (305) is adapted to the adapting column (307), and the clamping head (305) is adapted to the auxiliary ring (308).

3. A miniature circuit breaker according to claim 1, characterized in that: A connecting assembly (4) is provided at the bottom of the circuit breaker body (1), and the connecting assembly (4) comprises a connecting shell (401). The connecting shell (401) is fixedly connected to the bottom of the circuit breaker body (1), and a clamping block (402) is fixedly connected to one side inside the connecting shell (401).

4. A miniature circuit breaker according to claim 3, characterized in that: The other side of the connection shell (401) is movably connected to a clamp block 2 (403), and the internal thread of the clamp block 2 (403) is connected to a bolt (404), and the bolt (404) passes through the interior of the clamp block 1 (402).

5. The miniature circuit breaker according to claim 3, characterized in that: An auxiliary block (405) is fixedly connected to the bottom of the circuit breaker body (1) and below the connection housing (401); a cable routing groove (406) is provided inside the auxiliary block (405); and an elastic piece (407) is fixedly connected inside the cable routing groove (406).

6. A miniature circuit breaker according to claim 1, characterized in that: A protective cover (5) is rotatably connected to the bottom of the circuit breaker body (1), and positioning holes (6) are provided on the side surface of the circuit breaker body (1). The positioning holes (6) are symmetrically distributed on the side surface of the circuit breaker body (1).

7. The miniature circuit breaker according to claim 1, characterized in that: A dustproof assembly (7) is provided on the outside of the circuit breaker body (1), and the dustproof assembly (7) comprises a rotating shaft (701), the rotating shaft (701) is rotatably connected to the outside of the circuit breaker body (1), and a dustproof cover (702) is fixedly connected to the side surface of the rotating shaft (701), and the dustproof cover (702) is adapted to the circuit breaker body (1).

8. A miniature circuit breaker according to claim 7, characterized in that: The interior of the dust cover (702) is fixedly connected to a transparent glass (703), and the inner wall of the dust cover (702) is fixedly connected to a positioning block (704), and the positioning blocks (704) are symmetrically distributed on the inner wall of the dust cover (702).

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